William ballard



@met (tplm.

WILLIAM IBALLARD, OF CAROLINE, NEWyYORK.

` Letters PatentfNb. 104,099, dated June 14, 1870. i

SPARK-ARRESTER.

The Schedule referred to in these Letters Patent and making parl: of thesame.

I, WILLIAM BALLARD, of the town of Caroline, in the county of Tompkinsand State of New York, have invented certain Improvements inSpark-Extinguisher, of which the followingr is a specification.

' My invention relates to the combination of windmills, bars, arms,shafts, sieves, bolts, and stays, in such a manner that the same shallbe capable of4 extinguishing sparks of lire ina chimney or thesmokestack of an engine, the Object of my invention being to prevent thesparks escaping from the chimney or smoke-stack ot' an engine, asaforesaid.

I will nowproceed to describe my invention, so'that those skilled in theart may be enabled to make and use the same, reference being had to theaccompanying drawing forming a part of this specification, in which- AFigure 1 is a sectional view of my iuventionplaeed in the smoke-stack ofan engine, the upper part of said smoke-stack being eut away in order toshow the same.

Figure 2 is a perspective view of the frame used by me to hold thesieves and griudersiu connection with my invention.

Figure 3 is a View of the sieve used by ine.

Figure 4 is a perspective view of the wind-mill used4 by me inconnection with my said invention.

Figure 5 is a view of the grinders used by me.

Figure 6 is a view of the end of the fan to the mill.

Figure 7 is a view of the end of the grinder.

Similar letters of reference indicate like parts.

' a is 'the lower part of an ordinary smoke-stack.

b is the upper part of the same.l

c are the wings of the wind-mill.

l are the arms of the grinder.

c are` the sieves.

f is the hub of-the wind-mill and -also of the grinder'.

y is the shaft upon which' both wind-mill and grinder are fastened, andattaches the one to the other.

l1I arethe sockets supporting the shaft aforesaid.

'i is the strap or stay to hold the structure in position. s. g

j are the bau'ds to the sieves.

It is the outside flange to the smoke-stack.

lare the bolts which hold the structure up in the smoke-stack.- l

m are the bars or arms under the lower sieve and over the upper one,rendering them more firm and less liable to sag in the center, it beingdesirable to maintain als even a surface as possible.A

All parts of the structure should be made of metal. The wind-midisplaced below the lower sieve, and is caused to revolve by the draught ofthe chimney or .smoke-stack, as the case may be.

The grinder is placed between the two sieves e, and, being attached tothe wind-mill by the shaft g, turns as the wind-mill'revolves. The lowersieve being quite coarseallows the cinders and sparks to-fly through,V

by@ Let- 'lhe combination of the wind-mill c, the arms or grinders d,the upper and lower sieves e, the shaft g, the supports h, the stays t,the bands-or supports j, the bolts l, and the bars m, substantially asand for the purpose hereinbefore set forth.

Dated Marathon, February 18, 1870.

, WILLIAM BALLARD.

Vitnesscs:

I. CoMsrooK, J. L. MILLER.

